What is a significant risk factor for developing gestational diabetes?

A prior history of gestational diabetes stands out as a significant risk factor for developing gestational diabetes in subsequent pregnancies. Women who have experienced gestational diabetes in the past are more likely to have it again due to various factors such as insulin resistance, body weight changes, and metabolic health that contribute to their predisposition. The recurrence risk emphasizes the importance of monitoring and early screening for gestational diabetes in future pregnancies for these individuals.

In terms of the other options, age under 25 years does not typically position an individual at high risk, as gestational diabetes is more commonly seen in women who are older. A low body mass index is associated with a lower risk for gestational diabetes, while smoking status likewise does not directly correlate with gestational diabetes prevalence. Understanding these risk factors is crucial for timely intervention and management to ensure the health of both the mother and the baby.